<h1>math</h1>
<p>
Standard maths stuff.
</p>
<pre>
 BEGIN { Pi = 3.14159265
         E  = 2.71828183 
       }
 function oddp(x)  { return (x % 2) }
 function evenp(x) { return (! oddp(x)) }
 function round(x) { return int(x + 0.5) }
</pre>
<p>
by Tim Menzies
